Island



May a, 1927.,

G. P. BOSWORTH YARN 0R THREAD FEEDING MECHANISM FOR SPRING NEEDLE MACHINES Filed July 28, I922 2 Sheets-Sheet l W is.

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. y G. P. BOSWORTH YARN OR THREAD FEEDING MECHANISM FOR SPRING NEEDLE MACHINES Filed July as. 1922 2 sheets-sheet 2 Invefi/i/ow- Qaoqgefilios we r23 0,

fingers and indicating Patented May 3, 1 927. I

UNITED -STATES 1,626,781 PATENT orrics.

GEORGE P. BOSWOBTH, CENTRAL FALLS, RHODE RHODE ISLAND, A CORPORATION OF, MASSACHU- COMPANY, or CENTRAL FALLS, sn'r'rs.

rsLAnn, ASSIGNOR r nnmrnrrn YARN OR THREAD FEEDING MECHANISM FOR SPRING-NEEDLE MACHINES.

Application filed July 28,

. tion applied thereto;

' 'Fig. 2 is a side elevation of the construe tion shown in Fig. 1; Fig. 3 is a'detail upon a larger scale in side elevation of one of the, yarn feeding the mounting thereofand its functioning and non-functioning positions; and

Fig. 4'is a slightly modified form of yarn finger. While not restricted thereto, my invention is particularly applicable to machine; having needles of other than the pivoted latch type. I have illustrated my invention as applied to a spring needle split-foot hosiery machine.

The machine to which my invention is represented as applied is in its general charg acter of the well known Banner type having a rotary needle cylinder 1 and a stationarycam ring, the support whereof is indicated generally at 2, the block for the main knitting cams being indicated at 3 and that for the opposed, suture or seam creating cams being indicated at 4. The machine being represented as of the spring beard needle type, it is provided with a member or partial ring 5 pivoted at 6 so as to be swung up out of functioning position for any purpose. Said vrin .as illustrated occupies substantially a alf circle and I have represented a latch lever 7 pivoted at 8 upon the supporting standard 9 for the partial ring 5 and adapted to engage a pin 10 to hold the said partial ring 5 in functioning position. At one side of the knitting head, namely,- viewing Figs. 1 and 2, I provide desirably a plurality of yarn or thread fguides indicated at 11, 12, 13, 14, 15, each 0 the character tobe described, and at the opposite side I provide preferably a single yarn or thread guide 16 of the same character. -All of said yarn guides are adapted to be lifted out of action and to be depressed into action in at the right hand side 1922. Serial no. 578,103.

any suitable -manner not herein necessary fully to describe. Desirably those at the righthand'side of the knitting head viewin Figs. 1 and 2 are elevated out of action and lowered into action by means similar to those giilclosed inthe patent to Joshua D. Hemp- 1 opposite side of the knitting head may be lifted out of action by suitable means including if desired a lever 17 pivoted at 18 upon a suitable standard 19 and adapted to be moved by the parts 20, 21 at. proper times.

The spring beard needles herein indicated are or may be of the usual spring beard type as' for example those shown in the patent to No. 1,235,545, and to George P. Bos'worth, that end they are independently reciprocated in their grooves and independent pressers are provided to close their beards at the proper times. Desirably web holders are employed of any suitable character not herein shown. It is necessary in supply the same thereto at a relatively low No. 933,443. The yarn guide 16 at the feeding the yarn orthread to spring beard needles to point, lower than with latch needles, and it is also im ortant that the yarn-er thread uide at its feeding position be close to the needles. If, however, the yarn guide or guides be pivoted in the ordinary manner so" as to swing up and down upon'a fixed pivot, they will not when in their lowermost position be near enough to the needles satisfactorilyto supply the yarn thereto, and if on the other hand the yarn guide or guides be so mounted upon a xed pivot that when in their lowermost position, they are close to the needles, in tive position they strike the needles and preventproper operation thereof and cannot themselves function. In order to meet these and other difliculties, I have provided the following arrangement of arts.

At the 5 viewing Figs. 1 and 2, I have secured a plate 23 having a vertical face and thereon I fix a protruding pivotalv pin 24 for the yarn or thread guide 16 and a protruding guiding pin 25. At the opposite side of the partial ring 5 I provide a similar construction, though omitting if desired a plate corresponding to the plate 23. I provide at that side of the machine a pivotal in 26 and the pin 10 for guiding the up an down movements of the yarn guides or fingers.

being lifted into inopera-' left hand end 0' the partial ring 7 inactive 7 yarn guide as it in The yarn guide 16 is provided with a slot 27 which is parallel with the sides or edges 28, 29 of the yarn guide 16 and wherein is received the pivotal pin 24. The yarn guide 16 is provided with'a curved slot 30 of the form shown, extending generally transversely thereof and receiving the pin and in cooperation with the pin 24 comlpelling the yarn guide 16 in its rising and fa ling movements to partake of an in andout movement of such a character that when the said yarn guide is in the depressed position indicated in full lines in Figs. 2 and 3, the inner end of such yarn guide is close to the shanks of the needles and at its lower end where the thread is fed therefrom, is below the points of the beards so that said thread guide may against the shanks of the needles.

properly lay the yarn or threads As the yarn guide 16 is elevated it is moved slightl outward in the general direction of its length through the influence of the curved slot and so as to miss the beards of the active needles indicated at 31 and then is moved inward again into the dotted line position when above the idle needles indicated at 32, such movements occurring automatically through the cooperation of the pins 24,25 and the slots 27, 30.

The yarn guide 16 is provided with a set screw 33 and a locking screw 34 thereforg the former being adapted to engage the pin position and thus to conmovement of the said efi'ect determines the effective length of the curved slot 30.

Viewing Figs. 2 and 3, it will be observed that when the yarn guide 16 is elevated into osition, it 1s substantially directly over the idle needles 32 so that the idle. yarn leading therefrom to the usual inside of the needle circle cannot be engaged by the idle needles, as would be the case were the former constructions employed to which I have referred. When the yarn guide 16 is moved downward, into functioning position again, the described in and out movement is reversed. The construction of the yarn guides 11 to 15 at the opposite side of the machine is substantially the same, and the movements thereof are similar so far as the up. and down and in and out movements are concerned, and therefore need not be more fully described, it being merely noted that a curved slot 30 is provided in each of said yarn guides and also a set screw 36 and a locking screw 37 therefor. I have provided a coiled sprin nected to. the yarn guide 16 an fixed part of the machine, tending to move said yarn guide down into action or to hold it in action, and a similar spring 39. for each of the yarn guides-11 to 15. If desired, and as shown I may provide the inner end of each yarn guide 11 to 16 with a tube 39 25 in any adjusted trol the extent of 38 conto some clamp at the r of less diameter than the end of the guide and having a notch 40 leading to the passage through the tube and receiving the yarn. This construction is desirable as the small diameter of the tubes permits the feeding ends thereof to extendinto exact feeding position. In Fig. 4 I have shown a curved tube 41 for the same purpose.

Having thus described one embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims 1. A spring beard needle knitting machine having a rotatable needle cylinder with a circular series of needles, a partial ring transversely positioned at the upper end of said cylinder and terminating in opposed end upright faces for the reception of yarn guides and having at least at one of said faces one or more yarn guides adapted to be moved into elevated, non-functioning position with their inner ends wholly above inactive needles and into lower functioning position, a pivotal pin or pins for said yarn guide or guides, the latter being slotted to afford slight sliding movement upon said pin or pins, said guide or guides each having a curved slot and a pin positioned in said slot to guide the movement of the respective yarn guide, said slots and pins being so relatively positioned that when each yarn guide is down in functioning position, it is close to the shanks of the active needles below the beards at the yarn feeding point, and when in elevated inactive position is substantially directly over the path of the needles and above the highest'point of elevation of the idle needles, so that the inactive yarns leading to the yarn clamp are not engaged by the idle needles.

2 A spring beard needle knittin machine having a rotatable needle cy linder with a circular series of needles, a partial ring transversely positioned at the upper end of said cylinder and terminating in opposed end upright faces for the reception of arn guides and having each of said upright aces provided with two guide at each said face having a longitudinally extending slot near its rear end and wherein said pivotal pin is received, said yarn guides each having an inclined trans versely extending slot wherein the other-pin is received, whereby in the up and down movements of the yarn guide it is positioned for feeding below the yarn receiving portions of the needles at its feeding point and when elevated is substantially directly above the path of the needles and out of the way of the idle needles the inner end of sald yarn guide being so shaped that in its protruding pins, a yarn said elevated position it is wholly above the idle needles. v I

3. A spring beard needle knitting machine having a rotatable needle cylinder with a circular series of needles, a partial ring transversely positioned at the upper end of said cylinder and terminating in opposed end upright faces for the reception of yarn guides and having each of said upright faces provided with two protruding pins, a

yarn guide at each said face having a longitudinally ext-ending slot near its rear end and wherein said pivotal pin is received, said yarn guides each having a slot transversely extending and eccentrically positioned with regard to the pivot of said yarn guide, and

in which slot the other .pin is received, whereby in the up and down movements of the yarn guide it is positioned for feeding below the yarn receiving portions of the needles at its feedin point and when elevated is substantia y directly above the path of the needles and out of the way of the idle needles.

4. A spring-beard needle, circular, knitting machine having a rotatable needle cylinder with a circular series 'of independent needles, a substantially semi-circular ring transversely positioned at the upper end of said cylinder and terminating substantially at the yarn feeding points in opposed end upright faces for the reception of yarn guides, and. having at each of said upright faces a movable yarn guide, each of said yarn guides having a longitudinally extendmg slot for the reception of a pivotal pin upon one of said upright faces of the partial ring, and an inclined transversely extend- .der with a circular series of independent needles, a substantially semi-circular ring transversely positioned at the upper end of said cylinder and terminating substantially at the yarn feeding oints in opposed end upright faces, for t e reception of yarn guides and having at each of said upright faces a movable yarn guide, each of said yarn guides having a longitudinally extending slot for the reception of "a pivotal pin upon one of said upright faces of the partial ring, and a transversely extending slot ec'centrically positioned with respect to the pivot of the yarn guide, one of said pins being received as a pivotal pinin the longitudinally extending slot and the other of said pins beingreceived in the transversely extending, eccentrically positioned slot, whereby-each yarn guide has a pivotal up and down movement, and in its downward position is adapted for feeding close to the spring beard needles and when elevated is substantially directly above the path of the.

needles and out off the way of the idle' needles. Y

,6.'A circular knitting machine having a rotatable needle cylinder with a circular spring beard series of needles, a partial ring having two. substantially vertical faces at substantially 180 apart, each of said faces being provided with two protruding pins, a yarn guide at each face having a longitudinally extending slot near its rear end and wherein its pivotal pin is received, each yarn guide also having a curved, transversely extending slot wherein the other pin therefor 1s recelved, whereby 1n the up and. down movements of the yarn guides each is positioned for feeding close to the needles 1 at its feeding point and when elevated isv substantially directly. above the path of the,

needles and out of the way of the idle needles.

' 7. A circular, spring beard needle. knit-- ting machine having a rotatable needle cylinder with a circular, series of spring beard needles, a partial ring having two substantially vertical faces at substantially 180 apart, each of said faces having two protruding pins, a yarn guide for each face andhaving a longitudinally extending slot near the rear end thereof for the reception of its pivotal pin, each yarn guide having an inclined, transversely extending slot wherein its other pin is received, whereby in the up and down movement of each yarn guide it is positioned for feeding below the eards of the needles at its feeding point and when elevated is substantially directly above the path of the needles and out of the way of the idle needles.

8. A spring-beard needle, circular, knitting machine having a rotatable needle cylinder with a circular series of independent needles, a substantially semi-circular ring transversely positioned at the upper end of said cylinder and terminating substantially at the yarn feeding points in opposed end upright faces 'for the reception of yarn ides and having at each of said upright aces a movable yarn guide, each upright face being provided with two protruding pins, each yarn guide having a longitudinally extending slot near its rear end, and wherein one of said pins is received as a pivotal pin, each said yarn guide also having an inclined, transversely extending slot, wherein the other said pin is received, whereby in the up and down movements of each yarn guide it is positioned for feeding below the yarn receiving portions of' the spring beard needles at its feeding point, and when elevated is substantially directly above the path of the needles and out of the way of the idle needles, the inner end of each yarn guide being so shaped that in its elevated position it is wholly above the idle needle 9. A s ring beard, independent needle, circular, lfnitting machine-having a rotatable needle cylinder with a circular series of such needles, a substantially semicircular ring transversely positioned at the upper end ofsaid cylinder andpivoted so as to be turned up out of action, said ring terminating substantially at the yarn feeding points in opposed vertical end faces for the reception flatwise thereagainst of a yarn guide, each of said vertical faces being provided with two horizontally protruding pins having free outer ends, each said yarn guide having close to its outer end a longitudinally extending slot and wherein one of said pins is received as a pivot, said slot being of materially greater length than the diameter of said pin, each said yarn guide having substantially wholly below said pivotal pin an inclined transversely extending slot wherein said other pin is'received, whereby in the up and down movements of each of said yarn guides such guide is positioned for feeding below the yarn receiving portions of the spring beard needles close to the stems of the said needles, and when elevated is substantially directly above the vertical path of the said needles and out of the way through said slot, each said yarn gui of the idle needles, each yarn guide having at its feeding end a tube of "reduced diamevopposed vertical faces for the reception of yarn guides and having at each of said vertical faces a movable yarn guide, each said I yarn guide having near its outer end a longitudinal slot, a pin extending from the corresponding \vertical face and assing e havmg an inclined transversely extending slot between its inner, and outer ends and a second pin extending from the correspondmg face and received within said inclined slot, said second pin being located substantially lower than the first pin,

whereby when each yarn guide is in feeding position, it is supported in a downwardly inclined position with said second pin at the upper end of the inclined slot, and the pivotal pin at the outer end of the first mentioned slot, and whereby, when each yarn guide is lifted into inoperative position, the upper end of said inclined slot remains below the level of the said pivotal pin, thereby limiting the upward movement of each yarn guide.

In testimony whereof, I have signed my name to this specification.

GEORGE P. BOSWORTH. 

